#50 - Peanut Butter & Jelly
Country of origin: USA 
Peanut butter and jelly or jam on bread
An American classic and probably a favorite if you are 8 years old. Personally, I never liked so much sweet on a sandwich, so my variation as a kid was peanut butter only and it knocks this one to the bottom of my rankings. May not be a popular decision.
Even at the peak age of 7, I never liked PB&J. I mean it's ok, but I have never craved one even once. And Peanut butter and honey is way better. Good choice to recognize it (it's iconic, for sure) and slot it 50th.
Uncrustables are amazing. Never liked the traditional PB&J but man uncrustables are good.
I always thought of uncrustables as the food for the whiny spoiled little kids that didn't eat anything.
snotty nosed kid: "mommy i don't like this samwich cause the bread is funny with all those things on there."
mommy: "what do you mean"?
snotty nosed kid as he points: "those things..."
mommy: "honey, that's just bread"
snotty nosed kid: "NO IT'S NOT ITS SCARY. ITS NOT BREAD!!!!"
mommy: "oh i'm sorry honey. i will just cut those off for you and it won't be so scary. mommy never wants you to be scared of anything."
snotty nosed kid as he whimpers: "thank you mommy i wuv you soooooo much."
We used to make fun of that kid back in the day?
"You don't eat crust? What the hell?"
Not saying that's you though Zow. You seem way cooler than that.